Water Hardness Atlas ZIP / postcode

Water hardness in Sleights

60 mg/L soft

Tap water in Sleights is soft: 60 mg/L (3.5 gpg · 3.4 °dH · 6 °fH).

<6060–120120–180>180 mg/L

Source: Yorkshire Water — domestic drinking water quality (Stream open data, CC BY) (2025-09) · data checked 2026-10-20

Range across supply zones: 53–84 mg/L.

UK suppliers report mg/L CaCO₃ and often Clark degrees (1 °Clark = 14.25 mg/L).

Water data

Total hardness60 mg/L
UtilityYorkshire Water

How Sleights compares

Ranking of the hardest and softest water in the United Kingdom →

What it means at home

How much salt will you use for softening?

No. Water this soft does not need softening.

Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).

Estimates for planning, not a quote. Check your appliance manual for exact settings.

Dishwasher setting in Sleights

BrandSetting for this water
BoschH00
Miele3 °dH
AEG / Electrolux1
Beko1st
HooverS0
LGH0

From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →

FAQ

Is Sleights water hard or soft?

It is soft: 60 mg/L as CaCO₃ (3.5 gpg, 3.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.

Is tap water in Sleights safe to drink?

Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. UK suppliers report mg/L CaCO₃ and often Clark degrees (1 °Clark = 14.25 mg/L).

How many grains per gallon is Sleights water?

3.5 gpg, equal to 3.4 °dH, 6 °fH or 60 mg/L calcium carbonate.

What dishwasher salt setting should I use in Sleights?

For 60 mg/L (3.4 °dH) check your manufacturer's table: level 0–1, usually no salt.

Do I need a water softener in Sleights?

No. With soft water a softener adds nothing.

Source

Source: Yorkshire Water — domestic drinking water quality (Stream open data, CC BY) (2025-09). Method: own measurement. Yorkshire Water — domestic drinking water quality (Stream open data, CC BY) · Outdated figure? Tell us

Nearby cities

Whitby60 mg/LPickering305 mg/LScarborough204 mg/LKirkbymoorside308 mg/LRillington262 mg/LFiley257 mg/L
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